Display device

Abstract

A display device is provided. The display device according to the present disclosure may include: a display panel; a frame positioned behind the display panel; a main board coupled to the frame; a plurality of substrates disposed between the display panel and the frame, the plurality of substrates coupled to the frame; a plurality of light sources mounted on each of the plurality of substrates; a driver chip mounted on each of the plurality of substrates; an extension board electrically connected to the plurality of substrates; and a cable electrically connecting the main board to the extension board.

What is claimed is: 
     
         1 . A display device comprising:
 a display panel;   a frame positioned behind the display panel;   a main board coupled to the frame;   a plurality of substrates disposed between the display panel and the frame, the plurality of substrates being coupled to the frame;   a plurality of light sources mounted on each of the plurality of substrates;   a driver chip mounted on each of the plurality of substrates;   an extension board electrically connected to the plurality of substrates; and   a cable electrically connecting the main board to the extension board.   
     
     
         2 . The display device of  claim 1 , wherein the extension board comprises a processor configured to process data related to brightness of the light sources of the main board and providing the data to the driver chip. 
     
     
         3 . The display device of  claim 1 , further comprising:
 a power supply board coupled to the frame; and   a cable electrically connecting the power supply board to the extension board.   
     
     
         4 . The display device of  claim 3 , wherein the main board and the power supply board are coupled to a rear of the frame,
 wherein the frame comprises a hole through which the cable connected to the main board and the cable connected to the power supply board pass.   
     
     
         5 . The display device of  claim 1 ,
 wherein the plurality of light sources are grouped into a plurality of local dimming blocks for each of the plurality of substrates, and   wherein the driver chip controls a flow of current passing through the plurality of local dimming blocks.   
     
     
         6 . The display device of  claim 1 , wherein the extension board is elongated,
 wherein the plurality of substrates extend in a direction intersecting the extension board and are spaced apart from each other along the extension board.   
     
     
         7 . The display device of  claim 6 , wherein the plurality of substrates comprise:
 first substrates adjacent to a first long side of the extension board and coupled to the extension board, the first substrates extending in a direction intersecting the extension board; and   second substrates adjacent to a second long side of the extension board and coupled to the extension board, the second substrates extending in a direction intersecting the extension board.   
     
     
         8 . The display device of  claim 6 , wherein the plurality of substrates comprise:
 a first substrate;   a second substrate spaced apart from the first substrate; and   a third substrate opposite the first substrate with respect to the second substrate,   wherein the driver chip of the first substrate, the driver chip of the second substrate, and the driver chip of the third substrate are arranged in a zigzag manner in a length direction of the extension board.   
     
     
         9 . The display device of  claim 8 , wherein the first substrate and the third substrate are substrates of a first type,
 wherein the second substrate is a substrate of a second type different from the first type.   
     
     
         10 . The display device of  claim 1 , wherein at least one of the substrates comprise:
 a body which is elongated; and   legs extending from a first long side of the body in a direction intersecting the body, the legs spaced apart from each other along the body,   wherein each of the light sources is mounted on each of the legs,   wherein the driver chip is mounted on the body.   
     
     
         11 . The display device of  claim 1 , wherein at least one of the substrates comprise:
 a body which is elongated;   first legs extending from a first long side of the body in a direction intersecting the body, the first legs spaced apart from each other along the body; and   second legs extending from a second long side of the body in a direction intersecting the body, the second legs spaced apart from each other along the body,   wherein the light sources comprise:   light sources in a first row mounted on each of the first legs;   light sources in a second row mounted on each of the second legs,   wherein the driver chip is mounted on the body.   
     
     
         12 . The display device of  claim 11 , wherein a pitch between the light sources is smaller than a width of the driver chip. 
     
     
         13 . The display device of  claim 11 , wherein the driver chip comprises a plurality of driver chips which are spaced apart from each other along the body. 
     
     
         14 . The display device of  claim 13 , wherein the plurality of driver chips comprise:
 a first driver chip controlling brightness of the light sources in the first row; and   a second driver chip controlling brightness of the light sources in the second row.   
     
     
         15 . The display device of  claim 1 , further comprising:
 a reflective sheet covering the plurality of substrates, the reflective sheet having a plurality of holes in which the plurality of light sources are positioned,   wherein the reflective sheet covers the driver chip.